Two-Stroke Main Propulsion Drive with Reduction Gear

The trend towards ever larger tankers or container ships for economic reasons places increased demands on the maneuverability of ships, due to increasing shipping traffic on the world’s seas and, in particular, due to narrow shipping lanes. Lowest possible propeller speeds are not only good for maneuverability, but also allow the use of bigger propellers, which leads to clear increases in the efficiency of drive units. The use of reduction gears in the two-stroke main propulsion drive lines provide the possibility of reducing the propeller speed.